55 lines
2.9 KiB
C#
55 lines
2.9 KiB
C#
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//----------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//----------------------------------------------------------------
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namespace System.ServiceModel.Discovery
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{
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using System.ServiceModel.Channels;
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using System.Runtime;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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static class DiscoveryDefaults
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{
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public static readonly TimeSpan DiscoveryOperationDuration = TimeSpan.Parse(DiscoveryOperationDurationString, CultureInfo.InvariantCulture);
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public static readonly Uri ScopeMatchBy = FindCriteria.ScopeMatchByPrefix;
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public const string DiscoveryOperationDurationString = "00:00:20";
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public const int DuplicateMessageHistoryLength = 2 * 1028;
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public static class Udp
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{
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[SuppressMessage(FxCop.Category.Security, FxCop.Rule.DoNotDeclareReadOnlyMutableReferenceTypes)]
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public static readonly Uri IPv4MulticastAddress = new Uri(ProtocolStrings.Udp.MulticastIPv4Address);
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[SuppressMessage(FxCop.Category.Security, FxCop.Rule.DoNotDeclareReadOnlyMutableReferenceTypes)]
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public static readonly Uri IPv6MulticastAddress = new Uri(ProtocolStrings.Udp.MulticastIPv6Address);
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public static readonly TimeSpan AppMaxDelay = TimeSpan.Parse(AppMaxDelayString, CultureInfo.InvariantCulture);
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public const string AppMaxDelayString = "00:00:00.500";
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public const int DuplicateMessageHistoryLength = 4 * 1028;
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public const int MaxUnicastRetransmitCount = 1;
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public const int MaxMulticastRetransmitCount = 2;
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public static UdpTransportBindingElement CreateUdpTransportBindingElement()
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{
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UdpTransportBindingElement udpBE = new UdpTransportBindingElement();
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udpBE.RetransmissionSettings.MaxUnicastRetransmitCount = MaxUnicastRetransmitCount;
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udpBE.RetransmissionSettings.MaxMulticastRetransmitCount = MaxMulticastRetransmitCount;
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udpBE.RetransmissionSettings.DelayLowerBound = TimeSpan.FromMilliseconds(50);
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udpBE.RetransmissionSettings.DelayUpperBound = TimeSpan.FromMilliseconds(250);
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udpBE.RetransmissionSettings.MaxDelayPerRetransmission = TimeSpan.FromMilliseconds(500);
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udpBE.DuplicateMessageHistoryLength = DuplicateMessageHistoryLength;
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// The default value of ManualAddressing on UDP transport is false.
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// In discovery case, the discovery endpoints will receive all kinds of discovery messages, which sometimes
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// don't match the service contract. In this case, we want the discovery endpoint to ---- the errors
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// instead of sending fault messages back. So we need to disable auto addressing for the discovery scenario.
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udpBE.ManualAddressing = true;
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return udpBE;
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}
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}
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}
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}
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